LELIACE^. (LILY FAMILY.) 358 



1. S. amplexifolius, DC. Stem 2 to 3 feet high : leaves v«ry BTmnjih, 

 glaucous uuderneath : anthers tapering to a slender point : hii^ma entire, 

 truncate. — Across the continent iu northern latitudes and ranging south to 

 New Mexico. 



16. PROS ARTE S, D.Don. 



Low and pubescent, divergently branched above, with closelv Bossile ovate 

 and nienihraiKueous leaves, and drooping Howers, In ours the .stigma in 

 3-cleft. 



1. P. traehycarpa, Watson. Leaves ovate to ol)lung-lanceolate, acute 

 or rarely acuminate: perianth-segments whitish, slightly spreading, a<-ute : 

 fruit broadly obovate, obtuse and rather deeply lobed, papillose. — liot. King 

 Exped. v. 344. Colorado to Utah and the Saskatchewan. 



17. VERATRUM, Tourn. Falsk IIkllkbore. 



The pubescent panicle mostly staminate below, with green or greenish 

 bracts. In ours the leaves are broad-elliptical and sheathing, the ovary gla- 

 brous, and the capsule many-seeded. 



1. V. Californicum, Duraud. Stem 2 to 7 feet high: upper leaves 

 lanceolate, but rarely acuminate : branches of the sometimes compound 

 panicle ascending : perianth-segments obtuse, whitish with greener ha.se, 

 often denticulate above. — V. album, Watson. From Colorado and Wyoming 

 to N. California and Oregon. 



18. ZYGADENUS, Michx. 



Stem from a coated bulb crowning a short rhizome, with narrowly linear 

 obscurely nerved leaves mostly near the base: otherwise as ]'eniliutii. In 

 ours the gland covers more or less of the base of the perianth-segments. 

 * Flowers rather large, inostli/ perfect. 



1. Z. elegans, Pursh. Stem ^ to 3 feet high : leaves glaucous. 2 to 6 

 lines broad : raceme often few-Jlowered : bracts ovate-lanreolate, usually pur- 

 plish: perianth adnate at base; segments broad, greenish, the inner abru/tfly 

 contracted to a broad claw; gland obcordate. — Z. glaucits, Nutt From New 

 Mexico to Oregon and Canada. 



2. Z. Nuttallii, Gray. Stem stout, 2 feet high: leaves 3 to 8 lines 

 broad: raceme rather denselij Jioicered, with narrow membranous hrarts: j>rrinnth 

 free from the ovanj ; segments not clawed, with an ill-dejincd ghiiid at Intst. — 

 Manual, 525. From Colorado to Texas. 



« * Flowers smaller, poli/gamous. 



3. Z. venenosus, Watson. Stem slender, ^ to 2 feet high : hares 2 oi 

 3 lines broad, scabrous, the cauline not sheathing: raceme simple, short: 

 perianth-segments triangular-ovate to elliptical, olituse or rarrli/ anitish. all al>- 

 ruptly contracted to a short glandular claw; gland extending slightly al»ove 

 the claw with a well-defined irregular margin : seeds I i to 2| lines long — 

 Proc. Am. Acad. xiv. 279. From the Wasatch to California and Hrtli«h 

 Columbia. Known as " Death-Camass " or " Hogs' Potato " 



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